We seem to have to work backwards for this problem. The first thing we need to do is determine the number of moles for both CO2 and H2O.
Molar Mass CO2 = 44.0098g/mol
0.561g CO2 / 44.0098g/mol CO2 = 0.0127mol CO2
Molar Mass H2O =18.01528g/mol
0.306g H2O / 18.01528g/mol H2O = 0.0170mol H2O...
First step is to convert it from molarity to moles and we can do that since we're given both the molarity and the volume.
1.50M NaCl * 6.00L = 9mol NaCl
Next, we determine the molar mass of NaCl (use the periodic table)
Na = 22.98977g/mol Cl = 35.453g/mol
NaCl = 22.98977g/mol + 35.453g/mol...